Transom-operating mechanism



' Nov. 27, 1928.

T. E. KING TRANSOM OPERATING MECHANISM 1 Filed June 1925 8M MI? I WW:

'POlIliZGCl out in the appended claims.

the right to make changes in' Patented Nov. 27, 1928.

UNITED STATES PATENT OFFICE THOMAS EDWARD KING, OF WESTFIELD, NEWJERSEY, ASSIGNOR TO HITGHINGS & COMPANY, OF ELIZABETH, NEW JERSEY, ACORPORATION OF NEW JERSEY.

TRANSOM-OPERATING MECHANISM.

This invention relates to improvements in a mechanism for operating atransom, adapted more especially for use in residences, office buildingsand hotels.

An object of the invention is to provide a mechanism embodying areciprocating element operated by a non-travelling screw, wherein themotion of said element is communicated to the transom through the mediumof a few simple parts.

Another object resides in the provision of means for inclosing saidreciprocating element, and rotatively connected therewith.

A further object is to provide closure means which is compact, neat andattractive in appearance, simple in construction and which may, for thisreason, be manufactured at a low cost.

These and other objects and advantages of my invention will be clearlyset forth in the following description, taken with the accompanyingdrawings, and the novel features I of course reserve the shape, size andarrangement of details of the structure actually illustrated withoutdeparting from the nature and spirit of the invention, as the claimsdefine the same.

In the drawings:

Figure 1 is a front elevation of a transom operating device, embodyingmy invention.

Fig. 2 is a side elevation thereof illustrating diagrammatically thedevice connected to a door frame and transom.

Fig. 3 is an enlarged sectional view taken substantially on the line 3-3of Fig. 1, certain parts being removed to clearly illustrate theinterior of the casing; and

Fig. 4 is an enlarged section taken on the line H of Fig. 2.

The same numerals identify the same parts throughout the several views.

In the particular description of the drawings, and referringparticularly to Fig. 2, the letter A designates a transom, while theletter B denotes the door framing or amb.

To the latter is secured a housing 5 containing a gearing (not shown),operated by a crank 6, whereby rotative movement is transmitted to anon-travelling screw 7. Said screw 7 rises vertically from said housing5 and is provided with suitable bearings,

conveniently disposed therealong, in the form of brackets 8 and 9, whichare secured to the framing as indicated at 10.

The transom A is operatively connected to and within said casing 17 ismounted a reciprocating nut or. element 19.

The above description, in a general way, sets forth the cooperatingparts of a complete transom lifter, but as my invention is moreparticularly directed to certain mechanism contained therein, a completeand full explanation and portrayal thereof now follows.

Preferably the nut 19 is composed of separable members 20 and 21 whichare assembled as shown in Fig. 4, and when so positioned present adiametrically threaded bore 22 for the reception of the screw 7. Themembers may be segmentally recessed as indicated at 23 and are furtherprovided with pintles 24 and 25 seating within the axial recesses 26 ofthe casing 17.

The casing 17 is also comprised of separable members 27 and 28, havinglateral extensions 29 and 80 which form a bifurcated socket for thereception of the link 14. The casing is also provided with side openings81 and 32 slightly elongated for a purpose to be hereinafter pointedout. On inspection of Fig. 4, it will be observed that the sides of thecasing are centrally expanded to furnish material for the drilling ofsaid recesses 26.

Obviously the movement of said screw 7 is communicated to the nut 19causing the same to rise or fall thereon according to the direction ofsaid movement. Assuming that the nut 19 is travelling upwardly, theeasing 17 travelling therewith rotates on the pintles 24 and 25 andcommunicates motion by means of the link 14-and arm 11 to the ransom A.

It is possible that during the use of the de vice the pintles may wearuneven in their respective recesses, or the screws 18 may become loose.Under such circumstances separation of the nut members might easilyoccur so as to lessen the cooperation between the screw 7 and thethreaded bore 22. To

obviate any separation I place spring Washers 33v concentric with saidpintles 24 and 25 Which bear against the outer faces of said nut membersand the inner surface of said casing. Obviously any separation of thenut members is compensated by said Washers.

I claim:

1. In a device of the character described an element comprisingseparable members provided with axial pintles, a closure for saidelement adapted to rotatively engage said members and resilient meanssupported by said pintles for forcing said separable members in closeassemblage.

2. In a device of the character described a reciprocating elementcomprising separable members provided with axial pintles, a casing forsaid element embodying separable members having alined apertures adaptedto receive said pintles and to permit rotative movement of said casingWith respect to said element and resilient means for forcing theseparable members of said element in close assemblage.

3. In a device of the character described a nut, comprising separablemembers, pintles coaXially arranged on said nut, a casing comprisingseparable members having alined apertures for the reception of saidpintles and permitting rotative movement of said casing and having upperand lower openings, and resilient means encircling each of said pintlesand positioned betiv leen each separable member oi said casing and nut,and being adapted to force said separable members of said nut in closeassemblage.

4. In a device of the character described a nut, comprising separablemembers, pin tles coaxially arranged on said nut, a casing comprisingseparable members having alined apertures for the reception of saidpintles and permitting rotative movement of said casing and having upperand lower openings and resilient means for forcing said nut separablemembers in close assemblage.

T. EDWARD KING.

